Lithostratigraphy
Carboniferous
Not placed in stage
Moorefield formation (Mississippian)
Devonian
| Famennian | Chattanooga shale (Givetian – Famennian) |
| Frasnian | Chattanooga shale (Givetian – Famennian) |
| Givetian | Chattanooga shale (Givetian – Famennian) |
Moorefield formation (Mississippian)
| Famennian | Chattanooga shale (Givetian – Famennian) |
| Frasnian | Chattanooga shale (Givetian – Famennian) |
| Givetian | Chattanooga shale (Givetian – Famennian) |